/*
 * Copyright © 2016 Cask Data, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package co.cask.cdap.data2.audit;

import co.cask.cdap.proto.audit.AuditMessage;
import co.cask.cdap.proto.audit.AuditPayload;
import co.cask.cdap.proto.audit.AuditType;
import co.cask.cdap.proto.id.EntityId;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingQueue;

/**
 * Audit publisher to be used in tests.
 */
public class InMemoryAuditPublisher implements AuditPublisher {
  private final BlockingQueue<AuditMessage> messages = new LinkedBlockingQueue<>();

  @Override
  public void publish(EntityId entityId, AuditType auditType, AuditPayload auditPayload) {
    AuditMessage auditMessage = new AuditMessage(0, entityId, "", auditType, auditPayload);
    messages.add(auditMessage);
  }

  public List<AuditMessage> popMessages() {
    ArrayList<AuditMessage> list = new ArrayList<>();
    messages.drainTo(list);
    return list;
  }
}
